Fastener



July 3, 1928, 1,675,789

F. s. CARR FASTENER Original Filed Feb. 26, 1925 I n nigh.

. Red 9". ya??? Patented July 3, 1928.

UNITED STATES PATENT OFFICE.

FRED S. CARE, OF NEWTON, MASSACHUSETTS, ASSIGNOB TO CARR FASTENEB COI- PANY, OI CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

Original application filed February 26, 1925, Serial 110. 11,897. Divided and this application fled August 25, 1825.

This invention aims to provide an improved fastener stud unit.

vThe application is a division of my prior application, Serial No. 11,697, filed Febru ar 26, 1925.

in the drawings, which illustrate a preferred embodiment of m invention Figure 1 is an elevation view of a window and window frame of a vehicle body, showing one use of my invention; i

Fig. 2 is a section on the llne 22 of F g. 1, showing thetrim' strip secured to*the w 1ndow frame by stud and socket fastening means;'

Fig. 3 is a plan view of a portionpf a trim strip showing a stud element umt secured thereto;

Fig. 4 is a side elevation of the stud unit; Fig. 5 is an underside view of the stud unit;-

Figs. 6 and 7 illustrate the steps in the forming of the casing part of the stud unit; and

Fig. 8 is a section through the trim strip Ii showing a stud unit being secured thereto by the use of a suitable tool.

Referring to the drawings, I have shown a trimming installation particularl though not exclusively, useful on automobile bodies. The installation, as illustrated in Figs. 1 and 2, includes the window and window frame part 1 of the body (shown for illustration only), an upholstery fabric 2 covering portions of the inside of the body and overlying the edges of the window frame part 1 an a plurality of wooden trimming strips 3 secured to the frame part 1 by stud and socket fastener elements.

The frame part 1 is 'herein shown as 40 pressed metal and presents a plurality of stud-receiving apertures 1 for receiving the heads of the studs presented by the trim 'strips.

The trim stri is relatively long and thin and, because 0 its thinness, the fastening elements are constructed witha view to being securedto the wood without splitting or passing through it.

Each stud unit includes a casing part 4 Q0 and a socket-engaging part 5 and is secured to the trim strip 3 as hereinafter more fully described.

The socket-engaging part is pressed from Serial No. 52,319,

from the prong-presenting portion 10, as a best illustrated in Figs. 4, 5 and 8. The

attachin prongs 11 are first formed as a dome ig. 6), which is slotted to provide the severalprongs which are thereafter bent outwardly from the dome, as shown in Fig.

%, to ;he initially bent position, as shown in Assembly of the stud unit parts is effected I by placing the socket-engaging part, base ortion 7 first into the casing and then nding a portion of the u standing ,wall 8 over thebase and forming e outer or front flange 12, as best illustrated in Fig. 2.

The base 7 of the socket-engaging or stud part is smaller in diameterthan the diameter of the casing. The aperture 13, in the front flange 12, is larger in diameter than the head 6 and neck 7 of the stud. These clearances between the arts, as stated permit lateral shifting of t e'stud part re ative to the casing 'for alignmentwith its cooperating stud-receiving aperture 1", presented by the body .part 1.

Assembly of the stud units with a trim strip 3 is effected by first forming two concentric recesses 14 and15 at the mner face of the strip and securing the casing part 4 0f the stud unit in'the recesses. The attaching prongs 11 enter the smaller recess 15 (Fig. 8) and are forced outwardly into the wall of the recess beneath the annular seat 16 by a suitable tool 17, which seats against the front face of the casing, forces the casing into the recess 14 against its seat 16, as best illustrated in Fi 2. The seat 16 limits the movement of t e casing 4 of the stud unit SOrthflt when the rongs 11 are embedded in the strip 3, the ront flange 12 of the casing 4 lies flush with the inner face of the trim strip 3. Only the head and neck of the socket-engaging part 5 extend beyond the inner face of t e strip 3.

The prongs 11 are thus enga ed with the trim strip at a suflicient dept below the inner face of the strip so that they will be less. likely to splint out of the wood than if it were attached nearer the inner base of the strip.

Duringengagemen't of the studs with the stud-rece1vingua rtures 1, the socket engaging parts 5 s 4 to align with the apertures. The are then ressed into the apertures 1, as s own in F1 2, so that the trim strip sgueezes the up olstery fabric 2 against the ho y part 1 to hold it in place. Holes 18 are provided in the fabric 2 adjacent the apertures 1 in the body part to ermit the heads of the studs to pass theret rough.

Removal of the trim strip may be easily and quickly effected by inserting a suitable tool between the fabric 2 and the strip and prying upwardly to pull the stud heads free from the body 1 of the vehicle or other like support to which the stri s are attached.

While I have shown and escribed a preferred embodimentof my invention, it will be understood that I have done so for purposes of clarification rather than limitation, my invention being best defined in the followin claims.

1. A fastener comprising, in combination, a stud having a head and a base, a studsecuring part presenting a face underlying said base, a rim surrounding said base while providing clearance permitting lateral shifting of said stud relative to said securing part and a flanged-in rim on said securin part overlying said base at the side there'o relative to the casing part' opposite said face, and attaching prongs integral with said securing part and projecting rom said face in a direction opposite to that in which said head extends.

2. A fastener. stud unit comprising, in combination, a casin part presenting an annular wall, a front ange, a back flange and a depending rong-presenting portion at the free edge 0 said back flange, a resilient socket-engaging part having a relatively thin base portion located in said casing between said flanges and presenting a contractible and expansible socket-engaging head and neck assing through an aperture in said front auge for enga ement in a stud-receiving aperture, said soc et-engaging part lateral y shiftable relative to said casing for alignment with the stud-receiving aperture.

3. A fastener stud for trimming installations comprising, in combination, a socketengaging part and a casing part, said socketengaging part presentin a flat base, head and a neck, two annularange portions presented by said casing part and between which the said base is located while the head and neck of the stud extend therefrom at one side of said casing, said casing presenting at the o posite side from said head and neck, at t e inner edge of one of said flange portions, a plurality of initially bent attach- 1ng prongs for securing said casing to a su port. 1

n testimony whereof, I have signed my name to this specification.

- FREns. CARR. 

